4 if the equipment at the far end works normally

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4 If the equipment at the far end works normally, contact FiberHome for technical support. Caution: Checking whether the optical module is working normally will interrupt the service. 6.8.11 MEM Alarm Information Alarm Name Alarm Level Alarm Type MEM Prompt alarm Equipment alarm Influences on the System This alarm will not influence the system. Possible Cause The OLT receives unknown messages from the ONU due to the loss on the optical fiber, bad connection at the interface and optical module fault. 6-64 Version: D
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6 Prompt Alarms Handling Procedure 1. Restart the ONU and observe for 5 minutes to see whether the alarm is removed. 4 If the alarm ends, no handling is needed. 4 If the alarm still persists, Step 2. 2. View and confirm that the optical fiber is connected with the interface normally. If optical fiber loss occurs or the interfaces are not firmly connected, replace the optical fiber or restore the normal connection on the interface. 4 If the alarm ends, no handling is needed. 4 If the alarm still persists, Step 3. 3. Test whether the ONU's optical module is normal with the PON dedicated optical power meter and testing optical fiber. 4 If no, replace the optical module. If the alarm ends after the replacement, no handling is needed; if the alarm still persists, please contact FiberHome for technical support. 4 If the equipment at the far end works normally, contact FiberHome for technical support. Caution: Checking whether the optical module is working normally will interrupt the service. 6.8.12 PEE Alarm Information Alarm Name Alarm Level Alarm Type PEE Prompt alarm Equipment alarm Influences on the System The services of the ONU may be interrupted and the ONU may even be disconnected. Version: D 6-65
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AN5116-06B Optical Line Terminal Equipment Alarm and Event Reference Possible Cause The OLT receives a PEE message from the ONU due to the loss on the optical fiber, bad connection at the interface and optical module fault. Handling Procedure 1. Restart the ONU and observe for 5 minutes to see whether the alarm is removed. 4 If the alarm ends, no handling is needed. 4 If the alarm still persists, Step 2. 2. View and confirm that the optical fiber is connected with the interface normally. If optical fiber loss occurs or the interfaces are not firmly connected, replace the optical fiber or restore the normal connection on the interface. 4 If the alarm ends, no handling is needed. 4 If the alarm still persists, Step 3. 3. Test whether the ONU's optical module is normal with the PON dedicated optical power meter and testing optical fiber. 4 If no, replace the optical module. If the alarm ends after the replacement, no handling is needed; if the alarm still persists, please contact FiberHome for technical support. 4 If the equipment at the far end works normally, contact FiberHome for technical support.
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